Alarm clock with preceding alarm



O. ROSEKE.

ALARM CLOCK WITH PRECEDING ALARM. APPLICATION FILED JUNEII, 1919.

07m Rb'sEKE f Wi Patented Aug. 1, 1922.

UNITED sTATEs PATENT OFFICE.

OTTO ROSEKE,.OF STUTTGART, GERMANY.

ALARM cLocx wrrn rnncnnmennanu.

Specification of Letters Patent.

Patented Aug. 1', 1922.

Application flleri'lune 11, 1919,- Serial No. 803,493.

(GRANTED UNDER THE FROVISIONS OF THE ACT 01 MARCH 3, 1921, 41 STAT. L,1313.)

To allwkmn it may concern:

Be it known that I, Orro Resnlm, residing at Stuttgart,Wurttembergfifiermany, have invented certain new and useful Improvementsin Alarm have filed an application in Germany February 9, 1918, PatentNo. 311,741), of which the following is a s ecification. v

, larm clocks heretofore known have had the disadvantage that theiralarms started suddenly with full vigor Consequently frightening thesleeper to awaken him. i This is disagreeable and in addition disturbsothers who need not awaken at the same time.

In order to prevent yention has been provided with a prelimi- ,naryalarm which preferably gives single alarm signals, or strokes the mainalarm. These single alarm signals to cause ordinary people to awakegraduallyso that they will not be frightened out of their sleep. Furtherthe? preliminary alarm permits the person awakened by it to disable themain alarm before it becomes operative and thus prevent others sleepingclose by from being awakenedby the main alarm. v

This preliminary alarm} according to the present invention, may operatesome time I before the operation of the main alarm, for

instance, ten minutes before, and repeat at certain intervals, for;instance at every one or two minutes '.until the main alarm is sounded.Preferably, the signalis a single stroke of the bell, and is so arrangedthat the intensity ofthe sound of each stroke increases with repeatedstrokes. This has the effect of awakening the sleeper gradually and withjust as much noise as is necessary according to the soundness of hissleep. -With some people, sound sleepers for instance, the preliminaryalarm will not arouse them entirely. Nevertheless the-preliminary alarmwill arouse them-sufiiciently to prevent the main alarm, which followsthe preliminary alarm, from startling them.

The preliminary alarm and the mechanism operated'thereby may beconveniently applied to existing forms of-alarm clocks, particularlysince the mechanism for operating the alarm may be set in motion by anysuitable movin part of the main alarm controlling mec anism. It has beenfound ad- Clocks with Pieced-- .ing Alarms (for which I theseinconveniences, the alarm clock according to the present 1nof the bell,before .wheel g successively and at the vantageous to cause thepreliminary alarm to be controlled by the time wheel of the main alarmmechanism, which wheel is operated by the time spring of the clock.Therefore, it is not necessary to provide an extra spring for thispreliminary alarm, with the advantageous result that there is notanother spring to be periodically rewound.

In the accompanying drawings which show by way of example one form ofthe present invention,

Figure of the alarm clock.

Fig. 2 is a similar view, the initial or preliminary alarm having justbeen put in operation.

Fig. 3 is a top planview of the' alarm mechanism.

Fig. 4 is a side view of the same.

Figs. 5, 5,and 5 showvarious positions of a part of the mechanism forcontrolling both the initial and main or final alarms.

Fig. 6 is-a side view on an enlarged scale of the settable alarmcontrolled mechanism. The time works of the alarm clock may be of anysuitable or known construction.

.Theinitial or preliminary alarm of the resent invention comprises alever a which is pivoted on a screw 1) and is appropriately fitted withtwo arms, one arm bearing a striker or hammer 0 adapted to strikeagainst the bell d of the clock, and the other arm carrying a peg ewhich extends close to the face of a gear-wheel g which carries plugs fto cooperate with the peg e. The wheel g is an. intermediate wheel to befound in all clocks, either in the form shown or its equivalent, and iscontinuously rotated under the influence of the time works spring of theclock. The number of plugs f and their rela- 1 is a rear elevationshowing parts tive spacing corresponds to the number ofrepeatedoperations of preliminary alarms and the time of such plugs 7 each ofwhich gives a signal or alarm every one or two minutes.

7 In operation, when the clock is set for pre liminary alarm, theplugs fengage the pegs e ofthe lever a during the rotation of the desiredinterval. The lever a is thereby raised, as shown in Fig. 2, until theplug 7 has glided from under the peg c. The lever a is then free and candrop freely, or forcibly, under the influence of aspring, to thus causethe interval between alarms. In the illustrated embodiment there'arefour preliminary a can be controlled by a spring h to vary the behereinafter hammer carried by the lever a to strike liminary' alarm,according to the present in vention, .is connected to become operativeby thecam mechanism of the main alarm which is operated by the timeworks .of the clock. This cam mechanism is shown in the accompanyinggeared by the gear p as is usual, to the time works of theclock; aregulator shaft 0 and a regulating pin n. The disk m is held in normalengagement with the pin it by a spring Z as is usual, so that as the pin12 enters a-drop or notchq in the disk m, the entire disk and thespring'[will move laterally.. When the pinvn rests in the base of the drop,the'spring Z permits the main alarm to operate in the usual manner. Thedrop 9 1s not abrupt as in ordinary alarm clocks but is sloped. Thissloping of the dropis employed not only to make the preliminary alarmeffective,

but also controls the intensityof the blow of the hammer 0 against thej'purpose the lever a ofthe preliminary alarm is arranged to be engaged bybell.- For this a spring controlling member i having an Y abutment 70for engaging the lever a and preventing the operation'of the hammer c byholding the lever a in its highest position out of range of the plugs fon the operating wheel 9.. When the pin n starts down the slopingsurface of the notch g, the spring Z, which engages the spring 2' movesgradually from normal position and thus moves the controlling member 2'to remove the high part thereon from the lever a. This vtakes placeabout ten minutes before the operation ofthe main alarm, and as aconse-'quence of this movement of. the abutment 7c, the lever a is permittedto drop down to position to be engaged by vthe plug f on the wheel 9.-Asthe wheel 9 rotates the lever a is raised and dropped as abovedescribed.

- very lightly.

and consequently- The dropping-movement of the lever a is,

however interrupted by the abutment k and inthefirst stages of thepreliminary alarm operation this lever a is slight. The disk'm'of thealarm dropping movement ofthe mechanism continues to move laterally thusmoving the abutment-k, which increasesthe extent of dropping mo'veirlenttoflthe lever 11 the hammer c. The slight dropping movement of the levera; permits the hammer c to strike the bell of the clock, As theoperation repeats the increased dropping movement of the lever a abovedescribed.

preliminary alarm is dis drawings as comprising a disk m to operate at ameans controlled by causes the hammer c strikethe bell-with I more forceand therefore a loud sound results. This continues in intensity untilfinally the main alarm is put in operation as ..Any suitable or known,device may be employed for making the alarm ineffective either afterthe sleeper has been awakened or when it is not desired.

I claim as my invention:

1. An alarm clock comprising time mechanism, impact, mechanism settableto produce alarms; and settable mechanism controlled by the timemechanism for automatically modifying the force-of impact during theoperation of the alarm.

2. In an alarm clock, time mechanism,

means for giving periodic alarms at predetermined intervals; and meanscontrolled by the time mechanism for altering the nature, of the alarmfrom the first period to the last period.

'3. In an alarm clock, time'mechanism, means for giving periodic alarmsat predetermined intervals; and means controlled by the time mechanismwhereby the intensity of thealarm increases from the first period to thelast period 4. alarm clock comprising time mechani'sm, impactmechanismsettable to produce periodic alarms, and settable mechanism controlledby the time mechanism for automatically modifying the force of impact.during the operation of the alarm.

5. In an alarm cloclr,'means for giving pe riodic alarms; means wherebythe alarm of the first period is of less intensity than the alarm of thelast period ;'and means for giving a continuous alarm after the last,period of said periodic alarms.

6. An alarm .clock comprising alarm mechanism having means for causingalarms to be given intermittently at predetermined intervals, and meansfor automatically effecting a prolonged alarm after a predeterminednumber of preliminary alarms.

7. An alarm clock having alarm. mechanism settable tooperate at apredetermined t1me and having a continuous alarm device and anintermittent alarm device, and means for automatically elfecting theoperation of the continuous alarm device at apredetermined time afterthe firstoperation of the intermittent alarm device.

8. In an alarm clock, time mechanism, alarm mechanism; settablemechanism -f0r causing the alarm mechanism'to commence predeterminedtime; and the time mechanism for altering the nature of the alarm duringthe operation of the alarm device. 1

"9. In an alarm clock, time works; main v alarm mechanism comprisingmeans settable I to determine the time when the alarm shall be operated;means controlled by the time by the alarm operating trolling said agear-wheel; plugs carried by said gear-' works of the clock for causingthe alarm to operate at the determined time; and a prellminary alarmmechanism comprising means controlled by the last named means forcontrolling the operation of the preliminary alarm.

10. In an alarm c ock, a preliminary alarm mechanism comprising an alarmoperating lever, a hammer carried by said lever, and a peg carried bysaid lever; time works comprising a gear-wheel; and plugs carried bysaid gear-wheel and adapted to engage the peg carried by the alarmoperating lever to move said lever in preparation to giving an alarm andto subsequently release said. lever to cause the alarm to be given.

11. In analarm clock, a preliminary alarm mechanism comprising an alarmoperating lever, a hammer carried by said lever, a peg carried by saidlever, and an abutment controlling said lever; time works comprising agear-wheel; plugs carried by said gearwheel and adapted to engage thepeg carried lever to operate said lever repeatedly at predeterminedintervals for a predetermined period; and means moving said abutment topermit the operation of the alarm operating lever difierentially duringthe progress of said alarm period.

12. In an alarm clock, preliminary alarm mechanism comprising an alarmoperating lever, a hammer carried by said lever, a peg carried by saidlever, and an abutment conlever; time works. comprising wheel andadapted to engage the peg carried by the alarm operating lever tooperate said lever repeatedly at predetermined intervals for apredetermined period; and a cam disk for controlling said abutment topermit the movement thereof to free the alarm operating lever foroperation, said cam disk having a beveled surface whereby the freedom ofmovement of the alarm operating lever is varied during the progress ofthe alarm period.

13. In an alarm clock, means for producing at a predetermined timesingle stroke alarms repeated at predetermined intervals and means foraltering the nature of the alarm from the first interval to the lastinterval.

14. In an alarm clock, means for producing at a predetermined timesingle stroke alarms repeated at predetermined intervals and meanswhereby the intensity of the alarm increases from the first interval tothe last interval. 1

15. In an alarm clock, time mechanism; alarm mechanism preliminary alarmmecha nism; and a common controller for directly controlling the twosaid alarm mechanisms.

16. In an alarm clock, time mechanism; preliminary alarm mechanism;alarm mechanism comprising a time wheel and a controller operated by thetime wheel; and means on said controller for controlling the preliminaryalarm".

17. In an alarm clock, preliminary alarm mechanism comprising meansoperated b the time mechanism for actuating the preliminary alarmmechanism; and alarm mechanism comprising means operated by the timemechanism for controlling the alarm mechanism and the preliminary alarmmechanism.

18. In an alarm clock, time mechanism; preliminary alarm mechanismcomprising a hammer and means for actuating the hammer; alarm mechanismcomprising a time Wheel and a controller for the alarm mechanism, saidcontroller having a sloping lug thereon engaging the hammer, said timewheel being adapted to permit the gradual movement of the controller andthe lug to bring various portions of the sloping lug into engagementwith the hammer whereby the force of impact of the hammer is graduallyincreased.

In testimony whereof I hereby aifix my signature in presence of twowitnesses.

OTTO RosEK time mechanism;

Witnesses WALTER SOHWAEBSOH, PAUL WANESHONG.

